| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_AUDIO_PIPE_READER_H |
| #define ANDROID_AUDIO_PIPE_READER_H |
| |
| #include "Pipe.h" |
| |
| namespace android { |
| |
| // PipeReader is safe for only a single thread |
| class PipeReader : public NBAIO_Source { |
| |
| public: |
| |
| // Construct a PipeReader and associate it with a Pipe |
| // FIXME make this constructor a factory method of Pipe. |
| PipeReader(Pipe& pipe); |
| virtual ~PipeReader(); |
| |
| // NBAIO_Port interface |
| |
| //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers, |
| // NBAIO_Format counterOffers[], size_t& numCounterOffers); |
| //virtual NBAIO_Format format() const; |
| |
| // NBAIO_Source interface |
| |
| //virtual size_t framesRead() const; |
| virtual int64_t framesOverrun() { return mFramesOverrun; } |
| virtual int64_t overruns() { return mOverruns; } |
| |
| virtual ssize_t availableToRead(); |
| |
| virtual ssize_t read(void *buffer, size_t count); |
| |
| // NBAIO_Source end |
| |
| #if 0 // until necessary |
| Pipe& pipe() const { return mPipe; } |
| #endif |
| |
| private: |
| Pipe& mPipe; |
| int32_t mFront; // follows behind mPipe.mRear |
| int64_t mFramesOverrun; |
| int64_t mOverruns; |
| }; |
| |
| } // namespace android |
| |
| #endif // ANDROID_AUDIO_PIPE_READER_H |